<template>
	<view class="container" style="min-height: 100vh;background: #f3f3f3;">
		<view class="tui-searchbox">
			<view class="tui-search-input" @tap="search">
				<icon type="search" :size="13" color="#999"></icon>
				<text class="tui-search-text">搜索</text>
			</view>
		</view>
		
		<view class="lr-flax" :style='"height:"+(height)+"px;margin-top:"+top+"px"'>
			<scroll-view scroll-y class="left-cate" scroll-with-animation :scroll-into-view="rightIndex">
				<view v-for="(item, index) in Category" :key="index" :id="'left'+index" :class="['left-cate-item',currentLeftCateIndex === index ? 'left-cate-item-active' :'']" @tap="tapLeftBox(index)">
					<text :class="['left-cate-item-text',currentLeftCateIndex === index ? 'left-cate-item-text-active' :'']">{{item.title}}</text>
				</view>
			</scroll-view>
			
			<scroll-view  scroll-y class="right-cate" scroll-with-animation :scroll-into-view="rightIndex" 	@scroll="leftScroll">
				<view class="right-cate-item" v-for="(item, index) in Category" :key="index" :id="'right'+index">
					<view class="right-cate-title">{{ item.title }}</view>
					<view class="right-cate-flex">
						<view class="right-cate-flex-son" v-for="(item2 ,index2) in item.goodslist" :key="index2" @tap="toDetailsTap"
								:data-id="item2.id">
							<image :src="item2.image" mode="" style="width: 120rpx;height: 120rpx;"></image>
							<view class="text-light-muted">{{item2.name}}</view>
						</view>
					</view>
				</view>
			</scroll-view>
		</view>
		
		<tui-tabbar :current="current"></tui-tabbar>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				current: '',
				banners: [],
				Category: [],
				categoryId: '',
				categorystyle: '1',
				goodsList: [],
				page: 1,
				getSon: [],
				height: 0, //scroll-view高度
				top: 0,
				currentTab: 0, //预设当前项的值
				floorNum: '',
				number: '',
				scrollViewId: 'id_0',
				isShow: false,
				currentLeftCateIndex: 0,
				rightIndex: 'right0',
				leftIndex: 'left0',
				topList:[]  
			};
		},
		onLoad: function(options) {
			let _this = this;
			this.current = '/' + this.__route__;
			setTimeout(() => {
				uni.getSystemInfo({
					success: res => {
						let header = 92;
						let top = 0;
						this.height = res.windowHeight - uni.upx2px(header) - 52;
						this.top = top + uni.upx2px(header);
					}
				});
			}, 50);
			this.getbanners();
			this.getCategoryall();
		},
		onShow() {},
		methods: {
			onClassify() {
				this.isShow = !this.isShow
			},
			dropdownItem() {
				this.isShow = false
			},
			// 点击标题切换当前页时改变样式
			swichNav: function(Categoryid, e) {
				this.isShow = false
				let cur = e;
				console.log(e);
				if (this.currentTab == cur) {
					return false;
				} else {
					this.currentTab = cur;
					this.checkCor();
				}

				if (this.categorystyle == 1) {
					this.categoryId = Categoryid;
					this.page = 1;
					this.getGoodsList();
				} else {
					this.floorNum = 'b' + Categoryid;
				}
			},
			//判断当前滚动超过一屏时，设置tab标题滚动条。
			checkCor: function() {
				if (this.currentTab > 6) {
					this.scrollViewId = `id_${this.currentTab - 2}`;
				} else {
					this.scrollViewId = `id_0`;
				}
			},
			gogoodsList(e) {
				let key = e.currentTarget.dataset.key;
				let cid = e.currentTarget.dataset.cid;
				uni.navigateTo({
					url: '/pages/goodsList/goodsList?cid=' + cid + '&searchKey=' + key
				});
			},
			toDetailsTap: function(e) {
				uni.navigateTo({
					url: '/pages/goodsDetail/goodsDetail?id=' + e.currentTarget.dataset.id
				});
			},
			navigationTo: function(e) {
				this.sam.navigateTo(e.currentTarget.dataset.url);
			},
			search: function() {
				uni.navigateTo({
					url: '/pages/common/search/search'
				});
			},
			getbanners: function() {
				let _this = this;
				this.$request.get('ad.indexlist').then(res => {
					if (res.errno == 0) {
						this.banners = res.data;
					}
				});
			},
			getCategoryall: function() {
				let _this = this;
				this.$request
					// .get('Category.all', {
					// 		ptype: 1
					// })
					.get('Category.shopCate')
					.then(res => {
						if (res.errno == 0) {
							_this.Category = res.data;
							_this.categoryId = _this.Category[0].id;
							_this.getGoodsList();
							setTimeout(function() {
								_this.infoScroll();
							}, 500);
							console.info('services---request---getsonList--右侧二级三级分类成功');
						}
					});
			},
			getGoodsList: function() {
				let that = this;
				if (that.page == 1) {
					that.goodsList = [];
				}

				this.$request
					.post('goods', {
						categoryId: that.categoryId,
						page: that.page,
						ptype: 1,
						is_integral: 1,
						pageSize: 1000
					})
					.then(res => {
						that.goodsList = that.goodsList.concat(res.data.data);
						that.page = that.page + 1;
						//console.log(goodsList);
						uni.hideNavigationBarLoading();
					})
					.catch(e => {
						uni.hideNavigationBarLoading();
					});
			},
			infoScroll: function() {
				let _this = this;
				let len = _this.Category.length;
				if (_this.Category[len - 1].son) {
					this.number = _this.Category[len - 1].son.length;
				}
			},
			tolower: function() {
				if (this.categorystyle == 1) {
					this.getGoodsList();
				}
			},
			tapLeftBox: function(index){
				this.currentLeftCateIndex = index
				this.rightIndex = "right" + index
			},
			getRightTop(){
				setTimeout(() => {	
					let searchH = uni.upx2px(92)
					const query = uni.createSelectorQuery().in(this)
					query.selectAll('.right-cate-item').boundingClientRect(data => {
						data.forEach((item)=>{
							this.topList.push(item.top-searchH)
						})
					}).exec()
					// console.log(this.topList)
				},300)
			},
			leftScroll(e){
				const scrollTop = e.target.scrollTop;  //获取屏幕滚动的距离	
				for(var i=0;i<=this.topList.length;i++){
					if(scrollTop>=this.topList[i]&&scrollTop<=this.topList[i+1]){
						this.currentLeftCateIndex = i
						this.rightIndex = 'left' +i
					}
				}
			}
		}
	};
</script>

<style>
	page {
		background: #fcfcfc;
	}

	/* 左侧导航布局 start*/

	/* 隐藏scroll-view滚动条*/

	::-webkit-scrollbar {
		width: 0;
		height: 0;
		color: transparent;
	}

	.tui-searchbox {
		width: 100%;
		height: 92rpx;
		padding: 0 30rpx;
		box-sizing: border-box;
		background: #fff;
		display: flex;
		align-items: center;
		justify-content: center;
		position: fixed;
		left: 0;
		top: 0;
		z-index: 100;
	}

	.tui-searchbox::after {
		content: '';
		position: absolute;
		border-bottom: 1rpx solid #d2d2d2;
		-webkit-transform: scaleY(0.5);
		transform: scaleY(0.5);
		bottom: 0;
		right: 0;
		left: 0;
	}

	.tui-search-input {
		width: 100%;
		height: 60rpx;
		background: #f1f1f1;
		border-radius: 30rpx;
		font-size: 26rpx;
		color: #999;
		display: flex;
		align-items: center;
		justify-content: center;
	}

	.tui-search-text {
		padding-left: 16rpx;
	}

	.tab-view {
		/* height: 100%; */
		background: #f6f6f6;
		width: 200rpx;
		position: fixed;
		left: 0;
		z-index: 10;
		padding-bottom: 100rpx;
	}

	.tab-bar-item {
		width: 200rpx;
		height: 110rpx;
		background: #f6f6f6;
		box-sizing: border-box;
		display: flex;
		align-items: center;
		justify-content: center;
		font-size: 26rpx;
		color: #444;
		font-weight: 400;
	}

	.active {
		position: relative;
		color: #000;
		font-size: 30rpx;
		font-weight: 600;
		background: #fcfcfc;
	}

	.active::before {
		content: '';
		position: absolute;
		border-left: 8rpx solid #e41f19;
		height: 30rpx;
		left: 0;
	}

	/* 左侧导航布局 end*/

	.right-box {
		width: 100%;
		position: fixed;
		/* padding-left: 220rpx; */
		box-sizing: border-box;
		left: 0;
	}

	.page-view {
		width: 100%;
		overflow: hidden;
		padding-top: 20rpx;
		/* padding-right: 20rpx; */
		box-sizing: border-box;
		padding-bottom: env(safe-area-inset-bottom);
	}

	.swiper {
		width: 100%;
		height: 150rpx;
		border-radius: 12rpx;
		overflow: hidden;
		transform: translateZ(0);
	}

	/* #ifdef MP-WEIXIN */
	.swiper .wx-swiper-dot {
		width: 8rpx;
		height: 8rpx;
		display: inline-flex;
		background: none;
		justify-content: space-between;
	}

	.swiper .wx-swiper-dot::before {
		content: '';
		flex-grow: 1;
		background: rgba(255, 255, 255, 0.8);
		border-radius: 16rpx;
		overflow: hidden;
	}

	.swiper .wx-swiper-dot-active::before {
		background: #fff;
	}

	.swiper .wx-swiper-dot.wx-swiper-dot-active {
		width: 16rpx;
	}

	/* #endif */

	/* #ifndef MP-WEIXIN */
	>>>.swiper .uni-swiper-dot {
		width: 8rpx;
		height: 8rpx;
		display: inline-flex;
		background: none;
		justify-content: space-between;
	}

	>>>.swiper .uni-swiper-dot::before {
		content: '';
		flex-grow: 1;
		background: rgba(255, 255, 255, 0.8);
		border-radius: 16rpx;
		overflow: hidden;
	}

	>>>.swiper .uni-swiper-dot-active::before {
		background: #fff;
	}

	>>>.swiper .uni-swiper-dot.uni-swiper-dot-active {
		width: 16rpx;
	}

	/* #endif */

	.slide-image {
		width: 100%;
		height: 100%;
	}

	.class-box {
		padding-top: 10rpx;
		background: #fff;
	}

	.class-item {
		background: #fff;
		width: 100%;
		box-sizing: border-box;
		padding: 20rpx;
		margin-bottom: 20rpx;
		border-radius: 12rpx;
	}

	.class-name {
		font-size: 22rpx;
	}

	.g-container {
		/* padding-top: 20rpx; */
		display: flex;
		display: -webkit-flex;
		justify-content: flex-start;
		flex-direction: row;
		flex-wrap: wrap;
	}

	.g-box {
		width: 33.3333%;
		text-align: center;
		padding-top: 40rpx;
	}

	.g-box .price {
		text-align: center;
		font-size: 24rpx;
	}

	.c-image {
		width: 120rpx;
		height: 120rpx;
		border-radius: 12rpx;
	}

	.g-image {
		width: 100rpx;
		height: 100rpx;
		border-radius: 50rpx;
	}

	.g-title {
		font-size: 22rpx;
	}

	.goods-item {
		width: 96%;
		height: 150rpx;
		display: flex;
		padding-left: 5px;
		padding-right: 5px;
		padding-top: 12px;
		padding-bottom: 12px;
		flex-direction: row;
		/* margin-left: 20rpx; */

		padding: 20rpx;
		align-items: center;
		justify-content: flex-start;
		border-bottom: 1rpx dotted #f2f2f2;
	}

	.goods-pic {
		width: 80px;
		height: 80px;
		flex-shrink: 0;
	}

	.goods-info {
		display: flex;
		flex-direction: column;
		padding: 6px 5px 0px 5px;
		height: 70px;
		font-size: 24rpx;
		justify-content: space-between;
	}
	
	.lr-flax{
		display:flex;
		width: 100%;
	}
	.left-cate{
		width: 25%;
		background-color: #f3f3f5;
	}
	.left-cate-item{
		width: 100%;
		height: 100rpx;
		line-height: 60rpx;
		text-align: center;
		box-sizing: border-box;
		padding: 20rpx 0 ;
	}
	.left-cate-item-text{
		width: 100%;
		white-space:nowrap;
		display: inline-block; /*一定要将div设置为inline-block*/
		vertical-align: middle;/*设置该元素在父元素中的位置*/
	}
	.left-cate-item-active{
		font-weight: bold;
		background-color: white;
	}
	.left-cate-item-text-active{
		box-sizing: border-box;
		border-left: 8rpx solid #2d6cf5;
		color: #2d6cf5;
	}
	.right-cate{
		width: 75%;
	}
	.right-cate-item{
		width:100%;
		margin-bottom: 50rpx;
	}
	.right-cate-title{
		width: 100%;
		height: 80rpx;
		line-height: 80rpx;
		padding-left: 20rpx;
	}
	.right-cate-flex{
		display: flex;
		flex-wrap: wrap;
		justify-content: flex-start;
		padding-left: 60rpx;
		
	}
	.right-cate-flex-son{
		width: 30%;
		text-align: center;
	}
	.text-light-muted{
		width: 100%;
		text-align: center;
	}
</style>